22-42807147-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014570.5(ARFGAP3):c.1337G>A(p.Arg446His) variant causes a missense change. The variant allele was found at a frequency of 0.0000416 in 1,612,060 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

ARFGAP3
NM_014570.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.40

Variant links:

Genes affected

ARFGAP3 (HGNC:661): (ADP ribosylation factor GTPase activating protein 3) The protein encoded by this gene is a GTPase-activating protein (GAP) that associates with the Golgi apparatus and regulates the early secretory pathway of proteins. The encoded protein promotes hydrolysis of ADP-ribosylation factor 1 (ARF1)-bound GTP, which is required for the dissociation of coat proteins from Golgi-derived membranes and vesicles. Dissociation of the coat proteins is a prerequisite for the fusion of these vesicles with target compartments. The activity of this protein is sensitive to phospholipids. Multiple transcript variants encoding different isoforms have been found for this gene. This gene was originally known as ARFGAP1, but that is now the name of a related but different gene. [provided by RefSeq, Nov 2008]

ARFGAP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARFGAP3	NM_014570.5 link	c.1337G>A	p.Arg446His	missense_variant	Exon 14 of 16	ENST00000263245.10	NP_055385.3	Q9NP61-1A0A024R4U0
ARFGAP3	NM_001142293.2 link	c.1205G>A	p.Arg402His	missense_variant	Exon 13 of 15		NP_001135765.1	Q9NP61-2
ARFGAP3	XM_005261525.5 link	c.1205G>A	p.Arg402His	missense_variant	Exon 13 of 15		XP_005261582.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ARFGAP3	ENST00000263245.10 link	c.1337G>A	p.Arg446His	missense_variant	Exon 14 of 16	1	NM_014570.5	ENSP00000263245.5	Q9NP61-1
ARFGAP3	ENST00000437119.6 link	c.1205G>A	p.Arg402His	missense_variant	Exon 13 of 15	1		ENSP00000388791.2	Q9NP61-2
ARFGAP3	ENST00000453516.5 link	c.743G>A	p.Arg248His	missense_variant	Exon 8 of 8	3		ENSP00000403995.1	H0Y6A0

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000565

AC:

AN:

247764

Hom.:

AF XY:

0.0000523

AC XY:

AN XY:

133860

show subpopulations

Gnomad AFR exome

AF:

0.000127

Gnomad AMR exome

AF:

0.000146

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.0000334

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000446

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000390

AC:

AN:

1459772

Hom.:

Cov.:

AF XY:

0.0000386

AC XY:

AN XY:

726014

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000113

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 03, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1337G>A (p.R446H) alteration is located in exon 14 (coding exon 14) of the ARFGAP3 gene. This alteration results from a G to A substitution at nucleotide position 1337, causing the arginine (R) at amino acid position 446 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.075

BayesDel_noAF

Benign

-0.090

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

T;.

Eigen

Pathogenic

0.74

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Uncertain

0.098

MetaRNN

Uncertain

0.52

D;D

MetaSVM

Benign

-0.87

MutationAssessor

Pathogenic

3.4

M;.

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-3.3

D;D

REVEL

Uncertain

0.35

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.021

D;D

Polyphen

1.0

D;.

Vest4

0.75

MVP

0.58

MPC

0.53

ClinPred

0.68

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.25

gMVP

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over